From patchwork Fri Nov 10 19:19:45 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dongjiu Geng X-Patchwork-Id: 836699 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3yYHkj2Stxz9s4s for ; Fri, 10 Nov 2017 22:25:01 +1100 (AEDT) Received: from localhost ([::1]:41167 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eD7Qh-0000oZ-Ef for incoming@patchwork.ozlabs.org; Fri, 10 Nov 2017 06:24:59 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55207) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eD7HM-0001mk-QM for qemu-devel@nongnu.org; Fri, 10 Nov 2017 06:15:23 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eD7HL-000161-Fu for qemu-devel@nongnu.org; Fri, 10 Nov 2017 06:15:20 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:2287) by eggs.gnu.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.71) (envelope-from ) id 1eD7HE-0000rx-Vg; Fri, 10 Nov 2017 06:15:13 -0500 Received: from 172.30.72.60 (EHLO DGGEMS403-HUB.china.huawei.com) ([172.30.72.60]) by dggrg05-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id DKR46784; Fri, 10 Nov 2017 19:14:15 +0800 (CST) Received: from localhost.localdomain (10.143.28.90) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.361.1; Fri, 10 Nov 2017 19:14:03 +0800 From: Dongjiu Geng To: , , , , , , , , , , , , , , , , , , , , Date: Sat, 11 Nov 2017 03:19:45 +0800 Message-ID: <1510341591-22817-7-git-send-email-gengdongjiu@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1510341591-22817-1-git-send-email-gengdongjiu@huawei.com> References: <1510341591-22817-1-git-send-email-gengdongjiu@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.143.28.90] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090201.5A058A08.022A, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: ad27d86be7ac10c5644c1703eca0c064 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 45.249.212.191 Subject: [Qemu-devel] [PATCH v12 06/12] target-arm: kvm64: detect whether can set vsesr_el2 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Check if kvm can support to set vsesr_el2 value for vcpu. When guest takes a virtual SError interrupt exception, this value will provides syndrome value reported into ESR_EL1 ISS filed. Signed-off-by: Dongjiu Geng Signed-off-by: Quanming Wu --- Detect whether KVM has the capability to set ESR instead of detecting CPU RAS capability is discussed here: https://www.spinics.net/lists/kvm-arm/msg27150.html https://www.spinics.net/lists/arm-kernel/msg604440.html --- target/arm/kvm64.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index a16abc8..af8ebc9 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -980,3 +980,9 @@ bool kvm_arm_handle_debug(CPUState *cs, struct kvm_debug_exit_arch *debug_exit) return false; } + +static bool kvm_can_set_vcpu_esr(struct KVMState *state) +{ + int ret = kvm_check_extension(state, KVM_CAP_ARM_INJECT_SERROR_ESR); + return (ret) ? true : false; +}